*{margin: 0;padding: 0;}
.main{
    width: 1200px;
    margin: 0 auto;
}
.box{
    min-width: 1200px;
}
a{
    text-decoration:none;
}
input{
    outline: none;
}
li{
    list-style: none;
}
img{
    display: block;
}